Took DS to orthodontist today who said he has a Grade 4 overbite which in theory means he qualifies for NHS but as he is 10yrs he's too old. Apparently on NHS you can only do it before 10 yrs. He would qualify for NHS when all his adult teeth are in around 13 years. Ortho recommends correct the overbite now as best medically speaking but we'd have to pay. Either way he'll still need fixed braces later. So I am confused - has anyone heard of this 10 year age rule? And secondly, is it better to correct the overbite when they are still growing or wait?